No. They do not need to be ordained but they do need to represent a church or religious organization to do so.
Yes!
Yes
A friend can not legally marry a couple in any state of the United States including Colorado. To get legally married, you need an ordained minister of a church or a justice of the peace.
If you are ordained in another religion you cease to be a Catholic. You are free to marry but not in a Catholic church.
Yes, they can get married. My father was a United Methodist minister!
More than 1 kind of person: 1. Rabbi 2. Minister 3. Priest 4. Justice of the Peace 5. Captains of Ships
That depends on the laws of your country and the policy of the church in which the people want to marry. As you have not provided enough information about these things we can not help you further.
I've never heard of being self ordained, but as far as being ordained at all and marrying yourself, no. Marriage is a legal contract where you are required to have so many people bear witness, be present and such. The minister is actually a separate part of the contract and must be a separate entity. I would take up question of this sort with the local City Clerk though as laws on marriage very from here to there.
No, you are only allowed one woman if you are to get ordained.
State laws control marriage. If a youth minister is ordained by a religious church he should be able to perform a marriage even in a church that he doesn't serve as long as he has permission of the church congregation who owns the building.
It is legal for third cousins to marry in Wisconsin. It is also legal for second cousins to marry. The only set of cousins not allowed is first.
Any ordained minister. Any legitimate judge. Any duly authorized Justice of the Peace. Any ship's captain, when it is at sea. I've probably left a few out.